Directory       News       Site Map       Home
         
    Jepson eFlora
Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

A. douglasii (Torr. & A. Gray) A. Gray DOUGLAS MILKVETCH
NATIVE
Perennial herb, leafy; ± minutely strigose. Stem: generally many, ± decumbent or erect, 2–10 dm. Leaf: 5–18 cm; leaflets 7–25, 5–25 mm, elliptic, ovate, or obovate, midrib often raised abaxially, margins ± green, tips obtuse or shallowly notched. Inflorescence: flowers 10–30, spaced, spreading or ascending. Flower: calyx green, lobes 0.7–2.6 mm; petals ± white to pale yellow, banner 8–13 mm, recurved 60–90°, keel 6.2–10.8 mm, keel, wing claws 2.2–4.9 mm, keel blade 4.3–6.4 mm, > keel claw. Fruit: spreading or ± ascending, 25–60 mm, 12–32 mm wide, bladdery, sparsely hairy to glabrous, drying thinly papery; beak erect, pointed, compressed side-to-side; chamber 1; deciduous. Much like Astragalus macrodon (hairs ± spreading, ± wavy; leaflet margins purple); like Astragalus pomonensis (leaflets 25–41; keel blade <= keel claw); varieties ± intergrade. [Online Interchange]

Key to Astragalus douglasii

1. Calyx tube ± evenly hairy throughout, lobes longer than wide, generally 1.4–2.5 mm (intergrades in San Bernardino Mountains with var. parishii) ..... var. douglasii

1' Calyx tube most densely hairy between lobes, lobes ± as wide as long, generally 0.7–2.2 mm

2. Stem prostrate to ± ascending; peduncle incurved-ascending, in fruit often prostrate ..... var. parishii

2' Stem ± stiffly erect; peduncle erect, in fruit erect ..... var. perstrictus

Contact/Feedback

Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.